Just so this does not get lost:
My setup looks like:
richih@titanium ~ % cat .mrconfig
include = cat ~/.config/mr/config.d/*
richih@titanium ~ % ls ~/.config/mr/
available.d config.d
richih@titanium ~ %
That way, I can keep one common mr config across all systems and
symlink from the available repos to the ones I am using locally.
I have no problem running with this ~/.mrconfig indefinitely, but I
think this would be a worthwhile setup for many users and a nice
default to support.
FYI, $XDG_CONFIG_HOME defaults to ~/.config .
Richard